gunstone

From Middle English gunstone; equivalent to gun +‎ stone: they were originally made from stone.

gunstone (plural gunstones)

1. (obsolete) A cannonball.
   • c. 1599, Shakespeare, William, Henry V, Act 1, Scene 2:

     And tell the pleasant prince this mock of his / Hath turn'd his balls to gunstones

• nonguest, onguents

• gunne stone, gonne-stone, gonne stone, gonn stone, gunne ston

From gunne +‎ stone.

• IPA^(key): /ˈɡunstɔːn/

gunstone (plural gunstones)

1. (Late Middle English) A cannonball; a missile used by a cannon.
2. (rare, Late Middle English) A missile used by a trebuchet or similar device.

• English: gunstone (obsolete)
• Scots: gunstane (obsolete)

• “gǒnne-stōn (n.)” in MED Online, Ann Arbor, Mich.: University of Michigan, 2007, retrieved 2018-07-23.